// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()
const db = cloud.database();
const _=db.command;
// 云函数入口函数
exports.main = async (event, context) => {
  const openid = cloud.getWXContext().OPENID
  var {orderArr} = event
  var myWhere = {
    openid 
  }
  if(orderArr){
    myWhere._id = _.in(orderArr)
  }
return await db.collection("xiangcun_cars").where(myWhere).orderBy("addTime","desc").get()
}